Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
  • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
  • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
  • B21C47/24—Transferring coils to or from winding apparatus or to or from operative position therein; Preventing uncoiling during transfer
  • B21C47/245—Devices for the replacement of full reels by empty reels or vice versa, without considerable loss of time
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
  • B21B—ROLLING OF METAL
  • B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
  • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
  • B21C51/00—Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses B21B - B21F
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
  • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
  • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
  • B21C47/24—Transferring coils to or from winding apparatus or to or from operative position therein; Preventing uncoiling during transfer

Definitions

• the present invention relates to an industrial plant and process relating to the technical field of metal strip rolling mills, in particular tandem type with continuous winding station, having at the end of rolling an inspection table of the rolled product and in winding course.
• the winding sequence is as follows:
• the carousel is in the receiving position with the belt winder raised around the mandrel No. 1 in the lower position, the free mandrel No. 2 being in the upper position at 180 °;
• the belt retractor retracts and the winding of the reel No. 1 continues;
• a problem that arises is to detect as early as possible in the manufacturing process defects that can be unacceptable for the rolled strip, such as surface defects, geometry, thickness, flatness, etc. .
• a separate inspection of the line is not possible because it is disadvantageous from the point of view of the loss of time and therefore from the economic point of view.
• JP 2000 254725 discloses a cold rolling plant comprising, mounted in this order on the line, a cold rolling mill, a movable shear which cuts the steel strip produced continuously by the rolling mill, an apparatus for double mandrel tension winding, of the carrousel winder type, which continuously coils the steel strip.
• the carousel winder is positioned downstream and below the cold rolling line and a surface inspection apparatus which inspects the surface of the steel strip, is located downstream on an extension of the line of pass that passes over the carousel coiler.
• the installation is provided with switching means for directing the band towards the reel to carousel or alternatively to the surface inspection apparatus, positioned outside the moving shear.
• the document EP 1 581 355 discloses a method for the successive rolling and winding of a metal strip, in particular a steel strip, on a winding mandrel driven in rotation and capable of being discarded, in which the metal strip is inspected in longitudinal portions with respect to rolling anomalies.
• the strip samples are produced by a drum shear located after the last rolling stand, guided and stopped "in line” inside the rolling line above a winding station located below the rolling line. rolling line, on an inspection table, for a free visual inspection.
• the winding station is located under the plane of the inspection table, the latter being arranged "in line" with the rolling line.
• the steel strip emerging from the last rolling stand can be guided so that a baffle unit, arranged at the entrance of the winding station, can deflect the metal strip towards a winding mandrel.
• the inspection table is provided with gripping means which make it possible to return the strip samples in order to also inspect the other face.
• the tape samples are routed to a shear which reduces them to pieces before collection by gravity in a bin or waste car.
• the present invention aims to enable the realization of a quick and inexpensive inspection of rolled metal strips in a rolling plant operating continuously, including the winding station.
• the invention also aims to achieve a simple and reliable installation to perform this inspection.
• the invention aims to provide a facility that does not have a switch to direct the band either to the winding carousel, or to the inspection table.
• a first aspect of the present invention relates to a method of winding and online inspection of a continuously rolled metal strip, comprising a step of continuous winding on at least one mandrel of a winding station preferably carousel, characterized by at least the following steps:
• the band is cut by a first shears before the winding, a last turn of the coil made pivoting about the axis of the mandrel and falling on a table of introduction being in the extension of the line and followed by an inspection table; - the strip advances a certain length on the table of introduction and the table of inspection and is cut by a second shears in order to obtain a sample;
• the sample is inspected on the inspection table for defects.
• the method comprises one or a suitable combination of the following steps:
• the strip is rewound back and the coil removed and removed from the winding station;
• the tape sample is inspected on a first face, then returned and inspected on its second face;
• the sample is routed from the inspection table to an evacuation table, at the end of which is a third shear which cuts the sample into pieces which are then directed to a waste container or similar.
• a second aspect of the present invention relates to a winding installation and online inspection of a continuously rolled metal strip, comprising, downstream of the last rolling stand, a first shear, a winding station on at least one mandrel and an inspection table for detecting defects on at least one side of the web, characterized in that the winding station and the inspection table are in line and in that the installation further comprises an insertion table located in line between the winding station and the inspection table, associated with a second shear, which makes it possible to produce a sample of determined length, once the web has been cut by the first shear, pivoted around the mandrel axis as it fell on the infeed table and advanced over the infeed table and inspection table.
• the winding station is a carousel station.
• the installation according to the invention comprises, at the inspection table, pliers gripping means that return the sample to inspect the other side.
• Figure 1 shows a longitudinal sectional view of the carousel winding station coupled with an inspection table according to a preferred embodiment of the present invention.
• Figure 2 shows a longitudinal sectional view of the carousel winding station, according to another section, parallel to that of Figure 1. Description of a preferred embodiment of the invention
• FIG. 1 A preferred embodiment of the installation according to the invention is shown in Figure 1.
• the installation comprises successively, at the exit of the last cage of the tandem mill, in the direction of movement of the metal strip (pass line 100):
• a carousel 3 equipped with a first upper right mandrel 10 for the manufacture of a spool 1, 1 ', 1'', etc., provided with a nose-mandrel support 9, a second lower left mandrel 20 for making a coil 2, 2 ', 2'', etc., provided with a nose-mandrel support 11 and a belt winder 5 for priming the winding on the lower mandrel; an introduction table 6;
• the strip of the so-called "No. 1" coil (on the right mandrel and upper 10) is cut to the first shear 4, which generates a tail band.
• No. 2 The coil called "No. 2" 2 begins to be wound on the chuck left and lower 20. Once a few turns are wound, the belt reel 5 used for priming the winding of the band is evacuated. The winding speed increases.
• the last turn constituting the tail of the strip, pivots about the axis of the mandrel and "falls" on the introduction table 6.
• the tail of the spool 1 Y advance on the infeed table 6 and the inspection table 8.
• the tail of the spool 1 is then cut with the shear 7 to obtain a sample.
• the nose-mandrel support 9, supporting the right mandrel 10, is evacuated.
• the reel 1 is then rewound at the end of the band that has been cut off at the sample level.
• the "No. 1" coil 1 is then removed from the right mandrel 10 and discharged (with means not shown, known to those skilled in the art).
• the cut sample advances on the inspection table 8 and the sample is inspected on a first face.
• the ends of the sample are pinched by pinching means 8 ', 8' 'and the sample is returned (not shown).
• the other side of the sample is inspected.
• the ends of the sample are "peeled off”.
• the sample advances on the evacuation table 12.
• the nose-mandrel support 11, supporting the left mandrel 20, is evacuated and the carousel 3 rotates 180 ° in the direction of clockwise.
• the nose-mandrel support 9 is placed in position to support the new mandrel of the right and upper 10.
• the winding of the new coil "No. 2" therefore continues on the new right and upper chuck 10 (which is the old left chuck before rotation).
• the nose-mandrel support 11 is placed in position to support the new mandrel left and lower 20.
• the belt winder 5 used for priming the winding of the strip is set in the operating position.
• the tape speed and the speed of rotation of the right and upper mandrel 10 are decreased.
• the strip of the coil "No. 2" is cut to the shear 4, which generates a tail band.
• the coil "No. 3" 2 ' is wound on the chuck left and lower 10. Once a few turns are wound, the belt reel 5 is evacuated. The winding speed increases.
• the last turn, constituting the tail of the tape falls on the introduction table 6.
• the tail of the tape of the coil in advance of Y meters.
• the tape tail of the coil 1 is cut with the shear 7 to obtain a sample which has been inspected as described above.
• the previous sample left the inspection table 8. At the end of the discharge table 12, the previous sample is cut into pieces about 1 meter long at the shear 13, where they are directed to the hopper 14.

Priority Applications (4)

Applications Claiming Priority (4)

Publications (1)

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Family Applications (1)

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Cited By (2)

Citations (5)

Family Cites Families (3)

• 2012
  • 2012-05-15 EP EP12167984.9A patent/EP2664390B1/fr active Active
  • 2012-05-15 ES ES12167984.9T patent/ES2560378T3/es active Active
• 2013
  • 2013-01-03 RU RU2014135534A patent/RU2620222C2/ru active
  • 2013-01-03 BR BR112014016579-3A patent/BR112014016579B1/pt active IP Right Grant
  • 2013-01-03 WO PCT/EP2013/050033 patent/WO2013117351A1/fr active Application Filing
• 2014
  • 2014-08-06 PH PH12014501766A patent/PH12014501766B1/en unknown

Patent Citations (6)

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